Water tank sealing in Harat Al Bahr Jeddah
Harat Al Bahr overlooks the harbour and sea directly behind Bab Al Bunt, and its residents are traditional sailors and port workers. Salt here is higher than in any other quarter because air carries salt and moisture together. Tanks corrode from inside and outside because salt attacks both stone and metal.
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Potable-rated materials
Linings and disinfectants cleared for drinking water tanks, not general-purpose products.
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You get the downtime first
How many hours the tank is out of service, told before we start rather than after we finish.
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A first-draw flush
We run the first draw off after refilling, and the tank is not handed back until the water runs clear.
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Ground and roof tanks
Villas, apartment blocks and premises that need a written record of each visit.
Why the job is different in Harat Al Bahr
Houses sit closer to sea level, soil is highly saline and always damp, and moisture penetrates walls and foundations from the ground. The method is set out in full on the full Water tank sealing page.
High salinity and salt-laden air
The quarter sits on the harbour edge directly above the sea. Air is laden with sea salt and salt particles settle on stone and metal. Tanks corrode from outside and inside together because of elevated salinity.
Saline soil and constant moisture
Soil here is highly saline from seawater seepage. Rising moisture carries salt to tanks and foundations. Running water in the old street near the harbour adds to the dampness.
Old tanks and deep corrosion
Tanks here are very old and some are corroded metal or marine stone. Corrosion has penetrated walls and created voids beneath the surface. Surface repair alone will not solve it if corrosion runs deep.
The character of Harat Al Bahr
Historic district: close-set buildings, narrow lanes and ageing services
The old coastal quarter means salinity is the first challenge. Tanks here face constant pressure from airborne salt and saline water rising from soil. Sealing must be strong and additional outer protection may be necessary to prevent accelerated corrosion.
What we read before any material is opened
An old historic quarter in the south western part of Al Balad on the seafront near the harbour, with coral stone houses, the commercial Qabil Street and old port facilities.
Cracking in the wall
Rust and corrosion spread from the tank's outer face where sea salt and coastal humidity settle.
The floor to wall joint
Tank walls corrode inside from salt dissolved in water and high internal humidity.
The condition of the old lining
Stone foundations and joints draw saline water from soil up through fine capillaries.
Sediment and scale
Constant moisture from the sea and nearby harbour provides ideal conditions for rust and ongoing corrosion.
The pipe entries
Buried tanks here sit under pressure from saline water from below and sides, so sealing must protect from all angles.
The hatch and the vent
Saline water seepage leaves dry salt residue on the surface and around foundations, a clear sign of continuous corrosion.
How we work
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1
Inspect with the tank empty
We drain it and read the surface dry: whether the water leaves through a crack, a joint or a pipe collar, and what the outer face of the wall and the ceiling below are telling us. A level test with the valves closed separates a leaking tank from leaking pipework.
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2
Clean and prepare the substrate
Sediment out, a high pressure wash, the loose old lining and the weak surface layer of the concrete taken back, then dried. The material grips sound substrate and nothing else.
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3
Make the cracks and joints good
Cracks are chased out and filled with a repair mortar, a cove is formed where the floor meets the wall, and every pipe collar is treated on its own.
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4
Lining, fill test, sterilisation
Successive coats, each run across the one beneath it, on the face the water touches. Then a full cure, a fill with the level watched, and sterilisation with the first fill run to waste before the tank returns to use.
What water tank sealing includes
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Finding where the water leaves
Carried out drained and dry: cracks, joints, pipe collars and the outer face of the wall.
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Draining and sediment removal
The last of the water and the settled layer on the floor come out, because a lining does not stick over sediment.
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Cracks and joints made good
The crack opened and filled, a cove formed at the floor to wall junction, and each pipe entry worked separately.
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Lining coats on the water face
More than one coat, each crossing the one below, in material made for drinking water tanks rather than roof waterproofing.
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Curing, fill test and sterilisation
The material is left to cure, the tank is filled and the level watched, then sterilised and the first fill run to waste. How long the cure takes follows the material and the weather, and we tell you before the date so you can plan around the supply.
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A follow-up level check
We come back once it is in service to read the level and check the outer face, because any remaining loss shows up then rather than on the day of the work.
What is different about Historic Jeddah Municipality
The Historic Jeddah municipality covers the quarters of Al Balad inside the old wall: Al Mazloum, Al Sham, Al Yaman and Al Bahr. The buildings are tall houses of coral limestone and timber rawashin, centuries old, standing shoulder to shoulder on narrow lanes that see little sun, many under restoration or partly vacant. The ground is low and close to the sea and the harbour, humidity stays high through the year, and popular souqs and eateries trade late into the night. Old timber, voids between walls and goods stores create conditions favoured by termites, cockroaches, rodents and wood boring beetles.
Questions about this district
Does high salinity require different sealing?
Yes. Standard materials do not resist salt and corrosion long. We use materials built to withstand salt and coastal humidity.
Why do metal tanks rust so quickly here?
Air and soil are full of salt. Metals oxidise quickly and rust eats from inside and outside together.
Do we need to remove deep rust before sealing?
Yes essential. Deep rust beneath the surface must be cleared completely or rust will return under new sealing.
Does saline soil water affect sealing quality?
Yes greatly. Saline water rising from soil weakens sealing from below. We need sealant that resists salt penetration from beneath.
How do we protect the tank from airborne salt on the roof?
Roof tanks we cover with deep sealing layers and may add an outer protective coat to shield from salt damage and sun.
Does nearness to the harbour mean more frequent tank checks?
Yes. Moisture and salt develop rapidly. We recommend annual inspection and resealing every 3-4 years in this location.
How much does water tank sealing in Harat Al Bahr cost?
It is set after the inspection, because the price follows the type of infestation, the size of the space, how far it has spread and the number of visits it needs. Send a photo and a description on WhatsApp and we will give you an estimate before we reach Harat Al Bahr.
Nearby districts we cover
Other services in Harat Al Bahr
Other services we provide to residents of Harat Al Bahr.
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Water tanks
Water tank cleaning
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Water tanks
Water tank sterilization
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Water tanks
Tank leak repair
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Residential
Cockroach control
Need water tank sealing in Harat Al Bahr? Tell us what you saw and we will tell you what it needs
We reach Harat Al Bahr at a time we agree, and you get the full cost before we start.